Thermohaline intrusions in the thermocline of the western tropical Pacific Ocean
文献类型：期刊论文
| 作者 | Li Yuanlong1,2; Wang Fan1 ; Wang, F
|
| 刊名 | ACTA OCEANOLOGICA SINICA
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 32期号:7页码:47-56 |
| 关键词 | thermohaline intrusions thermocline water mass western tropical Pacific |
| ISSN号 | 0253-505X |
| 通讯作者 | Wang, F |
| 中文摘要 | The existing high-resolution hydrographic data in the western tropical Pacific Ocean are used to explore the spatial distribution and primary characteristics of thermohaline intrusions in the thermocline. Statistics show that the vertical scales of intrusions are 20-40 m in the upper thermocline (22.0-26.0 sigma(0)) and 40-80 m in the lower thermocline (26.0-27.2 sigma(0)). In the upper thermocline, the most intensive intrusions exist at the equatorial front (EF) where north/south Pacific water masses converge, and the westward spreading of the north Pacific tropical water (NPTW) in the Philippines Sea also produces patches of intrusions surrounding its high-salinity tongue. In the lower thermocline, intrusions are also strong at the tropical front (TF) which is the boundary between the north Pacific subtropical/tropical waters. At the bottom of the thermocline (at about 27.0 sigma(0)), intrusions mainly exist near the western boundary, which are produced by intermediate water convergence through the advection of subthermocline western boundary flows. Most strikingly a "C"-shape distribution of intrusions at around 26.4 sigma(0) is revealed, covering the vicinity of the EF, the TF, and the Mindanao Current (MC), i.e., the western boundary pathway of the north Pacific subtropical cell (STC). Synoptic section analysis reveals that intrusions are more prominent on the warm/salty flank of the fronts, implying more cross-front tongues of cold/fresh water. Among the intrusions, those at the EF are of best lateral coherence which implies a unique driving mechanism involving near-inertial velocity perturbations near the equator. |
| 英文摘要 | The existing high-resolution hydrographic data in the western tropical Pacific Ocean are used to explore the spatial distribution and primary characteristics of thermohaline intrusions in the thermocline. Statistics show that the vertical scales of intrusions are 20-40 m in the upper thermocline (22.0-26.0 sigma(0)) and 40-80 m in the lower thermocline (26.0-27.2 sigma(0)). In the upper thermocline, the most intensive intrusions exist at the equatorial front (EF) where north/south Pacific water masses converge, and the westward spreading of the north Pacific tropical water (NPTW) in the Philippines Sea also produces patches of intrusions surrounding its high-salinity tongue. In the lower thermocline, intrusions are also strong at the tropical front (TF) which is the boundary between the north Pacific subtropical/tropical waters. At the bottom of the thermocline (at about 27.0 sigma(0)), intrusions mainly exist near the western boundary, which are produced by intermediate water convergence through the advection of subthermocline western boundary flows. Most strikingly a "C"-shape distribution of intrusions at around 26.4 sigma(0) is revealed, covering the vicinity of the EF, the TF, and the Mindanao Current (MC), i.e., the western boundary pathway of the north Pacific subtropical cell (STC). Synoptic section analysis reveals that intrusions are more prominent on the warm/salty flank of the fronts, implying more cross-front tongues of cold/fresh water. Among the intrusions, those at the EF are of best lateral coherence which implies a unique driving mechanism involving near-inertial velocity perturbations near the equator. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Oceanography |
| 类目[WOS] | Oceanography |
| 研究领域[WOS] | Oceanography |
| 关键词[WOS] | SUBTROPICAL FRONTAL ZONE ; NORTH EQUATORIAL CURRENT ; PHILIPPINE SEA ; 3-DIMENSIONAL STRUCTURE ; INERTIAL INSTABILITY ; INTERMEDIATE WATER ; FINE-STRUCTURE ; REGIME SHIFTS ; ARCTIC-OCEAN ; MINDANAO |
| 收录类别 | SCI |
| 原文出处 | 10.1007/s13131-013-0331-3 |
| 语种 | 英语 |
| WOS记录号 | WOS:000321808000007 |
| 公开日期 | 2014-07-17 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/16447]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Wang, F |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Yuanlong,Wang Fan,Wang, F. Thermohaline intrusions in the thermocline of the western tropical Pacific Ocean[J]. ACTA OCEANOLOGICA SINICA,2013,32(7):47-56. |
| APA | Li Yuanlong,Wang Fan,&Wang, F.(2013).Thermohaline intrusions in the thermocline of the western tropical Pacific Ocean.ACTA OCEANOLOGICA SINICA,32(7),47-56. |
| MLA | Li Yuanlong,et al."Thermohaline intrusions in the thermocline of the western tropical Pacific Ocean".ACTA OCEANOLOGICA SINICA 32.7(2013):47-56. |
入库方式： OAI收割
来源：海洋研究所
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